<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<script>
    var arr = [65,32,88,21,8,3];


     for(var j = 0;j<arr.length-1;j++){
        for(var i = 0;i<arr.length-1-j;i++){
             if (arr[i]>arr[i+1]){
                 var temp = arr[i];
                 arr[i] = arr[i+1];
                arr[i+1] = temp;
             }
        }
     }
     console.log(arr);
</script>

</body>
</html>